Production of Fullerene-Metal Alloys by MA

MA 生产富勒烯金属合金

• 批准号: 07650837
• 负责人: ITO Kunio
• 金额: $ 1.47万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650837/
• 关键词: MECHANICAL ALLOYING; ALLOY; FULLERENE; MA; MA; メカイニカルアロイング; 機械的合金化

The present work aims to make use of "solution" or "dispersion" strengthening of metallic materials by molecules or nanocrystalline C60.Crystalline C60 (20 vol.%) and copper powders were sealed under nitrogen atmosphere and milled in a zirconia pot with balls of the same material 10mm in diameter. X-ray diffraction data indicate that C60 crystals disappear and the lattice spacing of copper increasses by MA.A transmission electron microscopy (TEM) shows that C60 changes into graphite or amorphous diamond-like phase.The milling was made by balls 3mm in diameter and the powders were compacted into disc 10mm in diameter and 1mm in height under 370Mpa. The discs were annealed between 100ﾟC and 700ﾟC.The C60 phase is in this case observed by TEM after 128h MA.The copper discs with 5vol.% as wells as 20vol.% C60 show Vickers hardness of about 200 after annealing at 600ﾟC.In the case of milling of aluminum with C60, the compaction by the same method was unsuccessful.The results indicate that metal-fullerene alloys can be made by selecting metals and milling conditions.

本工作旨在利用分子或纳米晶C60对金属材料进行“溶液”或“分散体”强化。和铜粉在氮气氛下密封，并在氧化锆罐中用直径为10 mm的相同材料的球研磨。X射线衍射分析表明，球磨后C60晶体消失，铜的晶格间距增大;透射电镜（TEM）分析表明，C60转变为石墨或非晶类金刚石相。在100 ° C和700 ° C之间对盘进行退火。在这种情况下，在128小时MA后通过TEM观察到C60相。威尔斯为20体积% C60在600 ℃退火后的维氏硬度约为200，用同样的方法对铝进行球磨，结果表明，通过选择合适的金属和球磨条件，可以制备金属-富勒烯合金。